Since there are countless different views of supreme beings in single countries not to mention the planet the chance of any of the religions being "right" is rather unlikely.
Thats not to say there isn't something bigger out there which lit the fuse to the big bang leading to all of this... You can't prove that either way.
Religions were of course created by man.. but who is right.. the stupidly high percentage of people in the world (90%?) who have religious beliefs or the relatively low percentage who do not?
Religion gives a lot of people in the world a purpose and can promote acts of unthinkable kindness...it can of course also start horrific wars.
I don't know who's right and quite frankly I don't care. Just go about your business and then die like the rest of us..
See you in the next life